Karina J. Nielsen. 2001. Bottom-up and top-down forces in tide pools: test of a food chain model in an intertidal community. Ecological Monographs 71:187-217.
Fig. A1. Relationship between algal biomass and percent cover. Harvested samples were weighed wet, after being dried to constant mass at 60° C, and after being combusted at 500° C. The circled point indicates a sample that was damaged during combustion (it was accidentally combusted at temperatures exceeding 500° C resulting in the combustion of non-organic material) and could not be included in the ash-free dry mass analysis. This observation had little influence on the relationship however, because removing it from the wet and dry mass regression analyses had virtually no effect on the outcome of the analysis.